An electric double isolating switch circuit breaker unit

Abstract

The present invention relates to the technical field of intelligent control of high-voltage switch cabinet equipment, and specifically discloses an electric double isolating switch circuit breaker unit, comprising: a fixed ring one and a fixed ring two, the fixed ring one and the fixed ring two are fixed on the periphery of a transmission rod; a protective box, the protective box is installed on the isolating circuit breaker body; a protective mechanism, the protective box is installed with a protective mechanism; a resisting mechanism, the top and bottom of the protective box are both installed with resisting mechanisms, and the two resisting mechanisms are respectively located above the fixed ring one and below the fixed ring two, respectively restricting the fixed ring one and the fixed ring two. When the isolating switch is opened and closed, the baffle instantly blocks the fixed ring one or the fixed ring two, and the protective plate instantly resists the fixed ring one or the fixed ring two, so that a part of the force on the end of the transmission rod can be shared, so that the extrusion force on the two ends of the transmission rod becomes smaller, thereby effectively avoiding the end of the transmission rod from being disconnected and damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent control of high-voltage switch cabinet equipment, and in particular relates to an electric double isolating switch circuit breaker unit. Background Art

[0002] Double isolating switch circuit breaker is a device used in power systems, mainly used to isolate and protect electrical equipment. It usually consists of two isolating switches and a circuit breaker.

[0003] During the use of double isolating switches, it is necessary to achieve synchronous opening and closing. In the existing process, a driving member is installed on one isolating shaft, and then connected to the other isolating shaft through a transmission member. When the driving member drives the isolating shaft to rotate, the other isolating shaft rotates due to the transmission of the transmission member, thereby realizing the synchronous rotation of the two isolating shafts and realizing synchronous opening and closing of the two isolating switches. The transmission member is a parallelogram rotating component, which mainly includes a transmission rod (such as Fig.12 As shown in the figure, an energy storage mechanism is arranged at the isolating shaft connected to the driving member, so that the isolating switch can be opened and closed quickly; the energy storage mechanism causes the isolating shaft to rotate instantly before the isolating switch is opened and closed, which causes a large squeezing force at the hinged active points at both ends of the transmission rod at the moment before the isolating switch is opened and closed, which makes the junctions at both ends of the transmission rod easy to break and be damaged. Summary of the invention

[0004] The purpose of the present invention is to provide an electric double isolating switch circuit breaker unit to address the deficiencies of the prior art, so as to solve the technical problem in the prior art that the transmission rod is subjected to a large extrusion force at the hinged active points at both ends of the transmission rod at the moment before the isolating switch is opened and closed, resulting in the junction of the two ends of the transmission rod being easily disconnected and damaged.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An electric double isolating switch circuit breaker unit comprises an isolating circuit breaker body, a transmission assembly and a transmission rod; the unit also comprises:

[0007] A fixing ring 1 and a fixing ring 2, wherein the fixing ring 1 and the fixing ring 2 are fixed to the periphery of the transmission rod, and the fixing ring 1 and the fixing ring 2 are symmetrical with respect to the horizontal plane of the center point of the transmission rod;

[0008] A protection box, wherein the protection box is mounted on the isolating circuit breaker body, and the transmission rod passes through the protection box;

[0009] A protection mechanism, wherein the protection box is provided with the protection mechanism, wherein the protection mechanism elastically moves up and down in the protection box, and the protection mechanism is located between the first fixing ring and the second fixing ring;

[0010] The resisting mechanism is installed at the top and the bottom of the protection box. The two resisting mechanisms are respectively located above the fixing ring 1 and below the fixing ring 2, and respectively restrict the fixing ring 1 and the fixing ring 2.

[0011] As a preferred embodiment of the above technical solution, the protection mechanism includes:

[0012] The protective plate, when the transmission rod moves up and down, the fixing ring 1 or the fixing ring 2 abuts against the protective plate;

[0013] A plurality of guide rods, the plurality of guide rods are longitudinally fixed in the protection box, and the protection plate is slidably connected to the plurality of guide rods;

[0014] Elastic member 2: an elastic member 2 is installed on the periphery of the guide rod.

[0015] As a preferred embodiment of the above technical solution, the resisting mechanism includes:

[0016] A driving rod, wherein two sets of fixing blocks are symmetrically arranged at the top and bottom of the protection box, and two movable grooves are symmetrically provided in the fixing blocks, and the driving rod is inserted into one of the movable grooves;

[0017] A push rod, the push rod being inserted into another movable groove in the fixed block;

[0018] A transmission member, which is installed in the fixed block and is in transmission connection with the driving rod and the push rod, so that the driving rod and the push rod always move in opposite directions;

[0019] Baffle: The top of the same group of push rods is fixed with a baffle. When the transmission rod moves up and down, the fixing ring 1 or the fixing ring 2 is supported by the baffle;

[0020] Elastic member three, an elastic member three is connected between the driving rod and the bottom of the movable groove into which the driving rod is inserted.

[0021] As a preferred embodiment of the above technical solution, the top and bottom of the protective box are respectively provided with through hole one, and the transmission rod passes through the two through holes one; the protective plate is provided with through hole two, and the transmission rod passes through through hole two, and the fixing ring one and the fixing ring two cannot pass through through hole two; the baffle is provided with through hole three, and the transmission rod passes through through hole three, and the fixing ring one and the fixing ring two cannot pass through through hole three.

[0022] As a preferred embodiment of the above technical solution, a slider is slidably installed in the second through hole, the transmission rod passes through the slider, and an elastic member 1 is symmetrically installed in the protective plate, and one end of the elastic member 1 is against the side of the slider.

[0023] As a preferred embodiment of the above technical solution, a stabilizing mechanism is installed on the baffle, and the stabilizing mechanism includes:

[0024] A tilting rod, wherein a rotation groove is symmetrically opened in the baffle plate about the transmission rod, and the tilting rod is rotatably installed in the rotation groove;

[0025] A clamping plate, a clamping plate is rotatably mounted on the movable end of the tilting rod, and the clamping plate clamps the transmission rod;

[0026] A push plate, wherein a moving groove is symmetrically opened in the baffle plate about the transmission rod, the moving groove is connected with the rotation groove, a push plate is slidably installed in the moving groove, and one end of the push plate abuts against the side surface of the tilting rod;

[0027] Extrusion plates, the upper end of the fixing ring 1 and the lower end of the fixing ring 2 are symmetrically provided with extrusion plates, slots are symmetrically opened in the baffle plate about the transmission rod, the extrusion plates are inserted into the slots, and the slots are connected with the moving grooves;

[0028] Elastic member four, an elastic member four is installed between the tilting rod and the rotating groove.

[0029] As a preferred embodiment of the above technical solution, both ends of the push plate are wedge-shaped, the bottom end of the extrusion plate is wedge-shaped, the bottom of the slot is located below the movable slot, the extrusion plate moves downward to extrude the push plate, and the push plate moves outward to extrude the tilting rod to rotate the tilting rod.

[0030] The beneficial effects of the present invention are:

[0031] 1. In the present invention, when the isolating switch is opened or closed, the baffle instantly blocks the fixing ring 1 or the fixing ring 2, and the protective plate instantly presses against the fixing ring 1 or the fixing ring 2, so that part of the force on the end of the transmission rod can be shared, so that the extrusion force on both ends of the transmission rod becomes smaller, thereby effectively avoiding the disconnection and damage of the end of the transmission rod.

[0032] 2. In the present invention, the slider restricts the transmission rod, thereby improving the stability of the transmission rod when it is displaced to the side. At the same time, the two elastic members abut the slider, further improving the stability of the transmission rod during the lateral displacement. The slider and the elastic member keep the transmission rod in a stable state during the displacement. The protection mechanism and the abutment mechanism can more effectively prevent the end of the transmission rod from being disconnected and damaged.

[0033] 3. In the present invention, before the fixing ring 1 or the fixing ring 2 is blocked by the baffle plate, the extrusion plate on the fixing ring 1 or the fixing ring 2 enters the slot and squeezes the push plate, and the push plate moves outward to squeeze the tilting rod, thereby rotating the tilting rod and clamping the clamping plate on the surface of the transmission rod. This can prevent the transmission rod from having a tendency to continue to move downward or upward, and at the same time keep the transmission rod stable, which can further share a part of the force on the end of the transmission rod, thereby effectively preventing the end of the transmission rod from breaking and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of the isolating switch when it is closed;

[0035] Figure 2 This is a schematic diagram of the structure when the isolating switch is open;

[0036] Figure 3 This is a schematic diagram of the transmission component structure when the disconnector is open;

[0037] Figure 4 This is a schematic diagram of the transmission component structure when the disconnector is closed;

[0038] Figure 5 It is a schematic diagram of the transmission assembly and the protective box structure;

[0039] Figure 6 This is a schematic diagram of the internal structure of the protective box;

[0040] Figure 7 It is a schematic diagram of the protection mechanism structure;

[0041] Figure 8 It is a schematic diagram of the structure of the resisting mechanism;

[0042] Fig. 9 It is a schematic diagram of the structure of the protective plate and the transmission rod;

[0043] Fig.10 It is a schematic diagram of the stable mechanism structure;

[0044] Fig.11 It is a schematic diagram of the overall structure of the stabilizing mechanism;

[0045] Fig.12 It is a schematic diagram of the transmission rod structure in the prior art.

[0046] In the figure:

[0047] 1. Isolating circuit breaker body; 2. Upper isolating switch; 3. Lower isolating switch; 4. Transmission assembly; 41. Isolating shaft; 42. Transmission frame; 43. Energy storage component; 44. Driving plate; 45. Connecting plate; 46. Transmission plate 1; 47. Rotating shaft; 48. Transmission plate 2; 5. Transmission rod; 51. Fixed ring 1; 52. Fixed ring 2; 6. Protection box; 61. Through hole 1; 62. Fixed block; 621. Movable groove; 7. Protection mechanism; 71. Protection Plate; 711, through hole two; 712, slider; 713, elastic member one; 72, guide rod; 73, elastic member two; 8, resisting mechanism; 81, driving rod; 82, transmission member; 83, push rod; 84, elastic member three; 85, baffle; 851, through hole three; 852, rotating groove; 853, slot; 854, moving groove; 9, stabilizing mechanism; 91, tilting rod; 92, splint; 93, push plate; 94, extrusion plate; 95, elastic member four. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] First of all, it should be noted that: Figure 1-Figure 5 As shown, an upper isolating switch 2 and a lower isolating switch 3 are arranged on the isolating circuit breaker body 1, and both the upper isolating switch 2 and the lower isolating switch 3 have isolating shafts 41, and the isolating shafts 41 corresponding to the upper isolating switch 2 are connected to a driving member, and the driving member can be a motor; the transmission mechanism 4 includes a transmission frame 42, and the transmission frame 42 is sleeved and mounted on the isolating shaft 41 connected to the driving member, and an energy storage member 43 is connected to the transmission frame 42, and the energy storage member 43 is composed of a telescopic rod and a spring, and the isolating switch is provided with instant opening and closing through the energy storage member 43 and the transmission frame 42 The power of the gate; a driving plate 44 is installed on the isolating shaft 41 connected to the driving member, and a connecting plate 45 is hinged on the driving plate 44, and a transmission plate 46 is hinged on the connecting plate 45, and the transmission plate 46 is rotatably installed on the rotating shaft 47, and a transmission rod 5 is hinged on the transmission plate 46, and a transmission plate 2 48 is hinged on the other end of the transmission rod 5, and the transmission plate 2 48 is installed on the isolating shaft 41 corresponding to the lower isolating switch 3; wherein, the transmission plate 1 46, the transmission rod 5 and the transmission plate 2 48 form a parallelogram transmission assembly. Example

[0050] like Figure 5-Figure 7 As shown, an electric double isolating switch circuit breaker unit includes an isolating circuit breaker body 1, a transmission assembly 4 and a transmission rod 5; the unit also includes:

[0051] The fixing ring 1 51 and the fixing ring 2 52 are fixed to the periphery of the transmission rod 5, and the fixing ring 1 51 and the fixing ring 2 52 are symmetrical with respect to the horizontal plane of the center point of the transmission rod 5;

[0052] A protection box 6 is mounted on the isolating circuit breaker body 1, and the transmission rod 5 passes through the protection box 6;

[0053] Protection mechanism 7: The protection box 6 is provided with the protection mechanism 7, and the protection mechanism 7 elastically moves up and down in the protection box 6. The protection mechanism 7 is located between the fixing ring 1 51 and the fixing ring 2 52;

[0054] The resisting mechanism 8 is installed at the top and the bottom of the protective box 6. The two resisting mechanisms 8 are respectively located above the fixing ring 1 51 and below the fixing ring 2 52, and respectively restrict the fixing ring 1 51 and the fixing ring 2 52.

[0055] In one case of this embodiment, the protection box 6 is located at the middle position of the transmission rod 5 when the transmission plate 1 46 and the transmission plate 2 48 are in a horizontal state.

[0056] In actual application of this embodiment, taking the disconnector opening as an example, the transmission rod 5 moves downward, and before the transmission plate 1 46 and the transmission plate 2 48 are in a horizontal state, the displacement of the fixing ring 1 51 and the fixing ring 2 52 is not restricted. When the transmission plate 1 46 and the transmission plate 2 48 are in a horizontal state, the fixing ring 1 51 contacts the protection mechanism 7. When the transmission plate 1 46 and the transmission plate 2 48 are below the horizontal state, the fixing ring 1 51 pushes the protection mechanism 7 downward, and the protection mechanism 7 starts the resisting mechanism 8, so that the resisting mechanism 8 moves up and slowly approaches the fixing ring 2 52. When the first 46 and the transmission plate second 48 are below the horizontal state, the transmission rod 5 moves downward rapidly. When the disconnector is opened, both ends of the transmission rod 5 are subjected to downward squeezing force. At this time, the resisting mechanism 8 resists the fixing ring second 52, thereby sharing a part of the force on the end of the transmission rod 5. When the resisting mechanism 8 blocks the fixing ring second 52, the protective mechanism 7 also resists the fixing ring one 51, and shares a part of the force on the end of the transmission rod 5. In this way, the squeezing force on the two ends of the transmission rod 5 is reduced, thereby effectively avoiding the disconnection and damage of the ends of the transmission rod 5. The same process is followed when the disconnector is closed.

[0057] like Figure 7 As shown, as a preferred embodiment of the present invention, the protection mechanism 7 includes:

[0058] The protective plate 71, when the transmission rod 5 moves up and down, the fixing ring 1 51 or the fixing ring 2 52 abuts against the protective plate 71;

[0059] A plurality of guide rods 72, the plurality of guide rods 72 are longitudinally fixed in the protection box 6, and the protection plate 71 is slidably connected to the plurality of guide rods 72;

[0060] Elastic member 2 73 : An elastic member 2 73 is installed on the periphery of the guide rod 72 .

[0061] In one case of the present embodiment, when transmission plate 1 46 and transmission plate 2 48 are in a horizontal state, the protective plate 71 is located in the middle position of the protective box 6; in addition, the elastic member 2 73 can be a spring, and the elastic force of the elastic member 2 73 is not sufficient to prevent the fixing ring 1 51 from moving downward or the fixing ring 2 52 from moving upward. The main function of the elastic member 2 73 is to enable the protective plate 71 to return to its original position.

[0062] In actual application of this embodiment, taking the disconnector opening as an example, the transmission rod 5 moves downward, causing the fixing ring 51 to drive the protective plate 71 to move downward, thereby triggering the resisting mechanism 8 below through the protective plate 71; when the disconnector is closed, the resisting mechanism 8 above is triggered.

[0063] like Figure 8 As shown, as a preferred embodiment of the present invention, the resisting mechanism 8 includes:

[0064] The driving rod 81, two sets of fixing blocks 62 are symmetrically arranged at the top and bottom of the protection box 6, and two movable grooves 621 are symmetrically provided in the fixing blocks 62, and the driving rod 81 is inserted into one of the movable grooves 621;

[0065] A push rod 83, the push rod 83 is inserted into another movable groove 621 in the fixed block 62;

[0066] The transmission member 82 is installed in the fixed block 62, and the transmission member 82 is in transmission connection with the driving rod 81 and the push rod 83, so that the driving rod 81 and the push rod 83 always move in opposite directions;

[0067] The baffle plate 85 is fixed to the top of the same group of push rods 83. When the transmission rod 5 moves up and down, the fixing ring 1 51 or the fixing ring 2 52 is supported by the baffle plate 85.

[0068] Elastic member three 84, an elastic member three 84 is connected between the driving rod 81 and the bottom of the movable groove 621 into which the driving rod 81 is inserted.

[0069] In one case of this embodiment, the transmission member 82 may be a gear, and the drive rod 81 and the push rod 83 are provided with tooth blocks matching the gear, and the tooth blocks are engaged with the gear; the elastic member three 84 may be a spring, and the elastic force of the elastic member three 84 is not sufficient to prevent the fixing ring one 51 from moving downward or the fixing ring two 52 from moving upward, and the main function of the elastic member three 84 is to enable the drive rod 81 and the push rod 83 to return to their original positions.

[0070] In actual application of this embodiment, taking the disconnection of the isolating switch as an example, the downward movement of the protective plate 71 will drive the driving rod 81 to move downward, and the driving rod 81 moves downward to cooperate with the transmission member 82 to move the push rod 83 upward, so that the baffle plate 85 moves upward to block the fixing ring 2 52. When the baffle plate 85 blocks the fixing ring 2 52, the disconnection of the isolating switch is completed. In this way, a part of the force on the end of the transmission rod 5 can be shared, thereby effectively avoiding the end of the transmission rod 5 from being disconnected and damaged.

[0071] like Figure 5-Figure 9 As shown, as a preferred embodiment of the present invention, the top and bottom of the protective box 6 are respectively provided with through holes 61, the transmission rod 5 passes through the two through holes 61, the protective plate 71 is provided with a through hole 711, the transmission rod 5 passes through the through hole 711, the fixing ring 51 and the fixing ring 52 cannot pass through the through hole 711, and the baffle plate 85 is provided with a through hole 851, the transmission rod 5 passes through the through hole 851, the fixing ring 51 and the fixing ring 52 cannot pass through the through hole 851.

[0072] In one case of this embodiment, since the transmission rod 5 will also move sideways during the downward displacement, through hole 1 61, through hole 2 711 and through hole 3 851 all reserve space for the transmission rod 5 to move sideways.

[0073] Furthermore, a slider 712 is slidably installed in the second through hole 711 , the transmission rod 5 passes through the slider 712 , and an elastic member 713 is symmetrically installed in the protective plate 71 , and one end of the elastic member 713 is against the side of the slider 712 .

[0074] In one case of this embodiment, there are blocks on both sides of the slider 712, and a corresponding sliding groove is opened in the second through hole 711. The blocks are stuck in the sliding groove, so that the slider 712 can only move horizontally; the elastic member 1 713 can be an elastic telescopic rod.

[0075] When this embodiment is actually used, the transmission rod 5 will move sideways during the downward displacement process, and the slider 712 restricts the transmission rod 5, thereby improving the stability of the transmission rod 5. At the same time, the two elastic members 713 resist the slider 712, further improving the stability of the transmission rod 5 during the displacement process; if the transmission rod 5 is in a shaking state, the force on both ends will be greater and the direction of the force will be more dispersed, which will make the ends of the transmission rod 5 more likely to break and be damaged. The slider 712 and the elastic member 713 are used to keep the transmission rod 5 in a stable state during the displacement process. The protection mechanism 7 and the blocking mechanism 8 can more effectively prevent the ends of the transmission rod 5 from being broken and damaged.

[0076] like Figure 10-11 As shown, as a preferred embodiment of the present invention, a stabilizing mechanism 9 is installed on the baffle 85, and the stabilizing mechanism 9 includes:

[0077] The tilting rod 91, a rotation groove 852 is symmetrically opened in the baffle 85 about the transmission rod 5, and the tilting rod 91 is rotatably installed in the rotation groove 852;

[0078] Clamping plate 92, the movable end of the tilting rod 91 is rotatably mounted with a clamping plate 92, and the clamping plate 92 clamps the transmission rod 5;

[0079] Push plate 93, a moving groove 854 is symmetrically opened in the baffle 85 about the transmission rod 5, the moving groove 854 is connected to the rotating groove 852, and the push plate 93 is slidably installed in the moving groove 854, and one end of the push plate 93 is against the side of the tilting rod 91;

[0080] Extrusion plate 94, the upper end of the fixing ring 1 51 and the lower end of the fixing ring 2 52 are symmetrically provided with the extrusion plate 94, and a slot 853 is symmetrically opened in the baffle 85 about the transmission rod 5, and the extrusion plate 94 is inserted into the slot 853, and the slot 853 is connected with the moving groove 854;

[0081] Elastic member four 95, an elastic member four 95 is installed between the tilting rod 91 and the rotating groove 852.

[0082] In one case of this embodiment, the two clamps 92 are in a vertical state in a normal state, and the fixing ring 1 51 and the fixing ring 2 52 can pass between the two clamps 92; the inner side of the clamp 92 is made of anti-slip material; the elastic member 4 95 can be a spring, and its function is to return the tilting rod 91 and the push plate 93 to their original positions.

[0083] When this embodiment is actually used, taking the disconnection of the isolating switch as an example, the baffle 85 moves up, the fixing ring 52 moves down, the extrusion plate 94 on the fixing ring 52 is inserted into the slot 853, and squeezes the push plate 93, and the push plate 93 moves outward to squeeze the tilting rod 91, thereby rotating the tilting rod 91 and clamping the clamping plate 92 on the surface of the transmission rod 5. When the clamping plate 92 clamps the surface of the transmission rod 5, the disconnection of the isolating switch is completed. This can prevent the transmission rod 5 from having a tendency to continue to move downward, and at the same time keep the transmission rod 5 stable, which can further share a part of the force on the end of the transmission rod 5, thereby effectively preventing the end of the transmission rod 5 from breaking and being damaged.

[0084] Furthermore, both ends of the push plate 93 are wedge-shaped, the bottom end of the extrusion plate 94 is wedge-shaped, the bottom of the slot 853 is located below the moving groove 854, the extrusion plate 94 moves downward to squeeze the push plate 93, and the push plate 93 moves outward to squeeze the tilting rod 91 to rotate the tilting rod 91.

[0085] In actual application of this embodiment, the wedge at the end of the push plate 93 cooperates with the wedge at the bottom of the extrusion plate 94. When the extrusion plate 94 moves downward, since the bottom of the slot 853 is located below the moving groove 854, when the bottom of the extrusion plate 94 contacts the push plate 93, the extrusion plate 94 still moves downward, so that the wedge surface at the bottom of the extrusion plate 94 squeezes the wedge surface of the push plate 93, thereby moving the push plate 93.

[0086] Working principle: Taking the disconnector opening as an example, the transmission rod 5 moves downward, and when the transmission plate 1 46 and the transmission plate 2 48 are below the horizontal state, the fixed ring 1 51 drives the protective plate 71 to move downward, and the protective plate 71 contacts the driving rod 81 and drives the driving rod 81 to move downward, and the driving rod 81 moves downward to cooperate with the transmission member 82 to move the push rod 83 upward, so that the baffle plate 85 moves upward to block the fixed ring 2 52, and at the same time, the extrusion plate 94 on the fixed ring 2 52 is inserted into the slot 853 and squeezes the push plate 93, and the push plate 93 moves outward to squeeze the tilting rod 91, so that the tilting rod 91 rotates, so that the clamping plate 92 is clamped on the surface of the transmission rod 5, and the fixed ring 2 52 is blocked by the baffle plate 85, and the protective plate 71 is against the fixed ring 1 51. The two clamping plates 92 clamp the transmission rod 5. At the moment when the disconnector is opened, most of the force on the end of the transmission rod 5 can be shared, thereby effectively avoiding the end of the transmission rod 5 from being disconnected and damaged.

[0087] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An electric double isolating switch circuit breaker unit, comprising an isolating circuit breaker body (1), a transmission assembly (4) and a transmission rod (5); characterized in that: The unit also includes: A fixing ring 1 (51) and a fixing ring 2 (52), wherein the fixing ring 1 (51) and the fixing ring 2 (52) are fixed to the periphery of the transmission rod (5), and the fixing ring 1 (51) and the fixing ring 2 (52) are symmetrical about the horizontal plane of the center point of the transmission rod (5); A protection box (6), wherein the protection box (6) is mounted on the isolating circuit breaker body (1), and the transmission rod (5) passes through the protection box (6); A protection mechanism (7), wherein the protection box (6) is provided with the protection mechanism (7), wherein the protection mechanism (7) elastically moves up and down in the protection box (6), and the protection mechanism (7) is located between the first fixing ring (51) and the second fixing ring (52); A resisting mechanism (8), wherein the top and bottom of the protective box (6) are both provided with resisting mechanisms (8), and the two resisting mechanisms (8) are respectively located above the first fixing ring (51) and below the second fixing ring (52), and respectively restrict the first fixing ring (51) and the second fixing ring (52); The protection mechanism (7) comprises: The protective plate (71), when the transmission rod (5) moves up and down, the fixing ring 1 (51) or the fixing ring 2 (52) abuts against the protective plate (71); A plurality of guide rods (72), the plurality of guide rods (72) being longitudinally fixed in the protection box (6), and the protection plate (71) being slidably connected to the plurality of guide rods (72); A second elastic member (73), wherein the outer periphery of the guide rod (72) is provided with a second elastic member (73); The resisting mechanism (8) comprises: A driving rod (81), wherein two groups of fixing blocks (62) are symmetrically arranged at the top and bottom of the protection box (6), and two movable grooves (621) are symmetrically opened in the fixing blocks (62), and the driving rod (81) is inserted into one of the movable grooves (621); A push rod (83), wherein the push rod (83) is inserted into another movable groove (621) in the fixed block (62); A transmission member (82), the transmission member (82) being installed in the fixed block (62), the transmission member (82) being in transmission connection with the driving rod (81) and the push rod (83), so that the driving rod (81) and the push rod (83) always move in opposite directions; The baffle plate (85) is fixed to the top of the push rods (83) of the same group. When the transmission rod (5) moves up and down, the fixing ring 1 (51) or the fixing ring 2 (52) is supported by the baffle plate (85); Elastic member three (84), an elastic member three (84) is connected between the driving rod (81) and the bottom of the movable groove (621) into which the driving rod (81) is inserted.

2. An electric double isolating switch circuit breaker unit according to claim 1, characterized in that: The top and bottom of the protection box (6) are respectively provided with through holes one (61), and the transmission rod (5) passes through the two through holes one (61); the protection plate (71) is provided with through hole two (711), and the transmission rod (5) passes through through hole two (711), and the fixing ring one (51) and the fixing ring two (52) cannot pass through through hole two (711); the baffle plate (85) is provided with through hole three (851), and the transmission rod (5) passes through through hole three (851), and the fixing ring one (51) and the fixing ring two (52) cannot pass through through hole three (851).

3. An electric double isolating switch circuit breaker unit according to claim 2, characterized in that: A slider (712) is slidably mounted in the second through hole (711), the transmission rod (5) passes through the slider (712), and an elastic member (713) is symmetrically mounted in the protective plate (71), with one end of the elastic member (713) resting against the side of the slider (712).

4. An electric double isolating switch circuit breaker unit according to claim 1, characterized in that: A stabilizing mechanism (9) is mounted on the baffle (85), and the stabilizing mechanism (9) comprises: A tilting rod (91), wherein a rotation groove (852) is symmetrically formed in the baffle plate (85) with respect to the transmission rod (5), and the tilting rod (91) is rotatably mounted in the rotation groove (852); A clamping plate (92), the movable end of the tilting rod (91) is rotatably mounted with the clamping plate (92), and the clamping plate (92) clamps the transmission rod (5); A push plate (93), wherein a movable groove (854) is symmetrically formed in the baffle plate (85) about the transmission rod (5), the movable groove (854) is connected to the rotation groove (852), a push plate (93) is slidably mounted in the movable groove (854), and one end of the push plate (93) abuts against a side surface of the tilting rod (91); An extrusion plate (94), the upper end of the fixing ring 1 (51) and the lower end of the fixing ring 2 (52) are symmetrically provided with an extrusion plate (94), a slot (853) is symmetrically provided in the baffle plate (85) about the transmission rod (5), the extrusion plate (94) is inserted into the slot (853), and the slot (853) is communicated with the moving groove (854); Elastic member four (95), an elastic member four (95) is installed between the tilting rod (91) and the rotating groove (852).

5. An electric double isolating switch circuit breaker unit according to claim 4, characterized in that: Both ends of the push plate (93) are wedge-shaped, the bottom end of the extrusion plate (94) is wedge-shaped, the bottom of the slot (853) is located below the movable groove (854), the extrusion plate (94) moves downward to extrude the push plate (93), and the push plate (93) moves outward to extrude the tilting rod (91) to rotate the tilting rod (91).

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